Stop mechanism for warpers



W 3, 1932 J. w. smEBQTToM 1,817 069 STOP MECHANISM FOR WARPERS Original Filed Aug. 2, 1927 I5 Sheets-$heet l M1267? '07. QY. SA

Sept, 13, 1932. J. w. SIDEBQTTOM 7 STOP MECHANISM FOR WARPERS Original Filed Aug. 2. 1927 5 Sheets-Sheet 2 J T 1 A L 6/ Sept. 13, 1932. J. w. SIDEBOTTOM 7 STOP MECHANISM FOR WARPERS Original Filed Aug. 2. 1927 3 Sheets-Sheet 3 82M Ow 8km Zy QaMbwu Patented Sept. 13, 1932 I WITED$TATE$ P E T" OF CE JOHN w. sinnisor'roivi, OFjLOVIELlL;MASSACHUSETTS; assienoit T0 are. ENTWISTLE COMPANY, OF LOWELL, MASSACHUSETTS, i conrona'rion or MASSACHUSETTS I 'sr 'oi mncimiv sivi iron WABPERS original application filed' August 2, 1927, Serial No; 210,041. Divided and this application filed February 23,1928. Serial No. 25 5,149.

T he invention relates to wai'pers employed in textile mamifacture. tended, more particularly, for usein beamwarpers, although in part they are ble to other types of warpers,-also.

' The invention set forth in the present-docu ment is'a divisional part ofmy original application, filed Aug.' 2, 1927, Serial No. 210,041, and comprises novel and-accurate measuring mechanism and stop mechanism, contrive-d to'keep track of the amount of yarn that has passed throughthe machine, and to knock oil the driving control instantly when the desired length has been reached.

In the drawings 1- Fig. 1 is an elevation of one end Mia-beam- Warp-er with the devices of the invention applied thereto, parts not involved 7 in the invention being omitted;

Fig. 1A is a detail view showing the latchv and detent of the starting and stopping mechanism.

Fig. 2 is a front view ofportions of; the machine, parts being omitted as in the-case Of Fig. 1.

Fig. 3 is a view partly in section online of Fig. 2, lookingin the direction 111C117:

catcd by the arrows. V v H Having reference to thedrawings The latter showonly such parts and elements of a beam-warper'of well-knownexisting type as will serve conveniently to IBlT-J tier-apparent the relations and nature of the invention. 1 Art 1, 1, are the-opposite endframes of the machine, and at 2 is the usual drum, located between the said end-frames and journaled in bearings in, connection therewith, and serving to rotate the warp: receiving warp-beam 8 (Figs. 1 and 3) through frictional contact between the periphery of the drum and thebarrel of the said warp-beam or the exterior of the mass:

of warp-yarns wound thereon; At 7, 7, are

retainin arms such as usually are provided in a beam-warper for retaining the warp beam in working relations with the friction- I drum 2, the said arms being provided at their outer ends with bearings receiving the journals 23 of the warp-beam, and being hung at their inner endsiipon pivotal. supports:

Its features are in applicaa round which they swing freely'vertically as the'diameter of the mass-of yarn wound on the beam-barrel increases progressively in the'course of the winding. As will be'apparw ent, .in' this, swinging movement the arms swing in the arc of a circle around the said pivotal supports. g I Having reference, now, to my improvements'in connection with the mechanism for; measuring the length of warp wound upon the warp-beam 8: i I

Instead of following the usual practice of employing a measuring roll thatis rotated by 1 the warp itself on its way to the warp-beam, I combine the frictional driving drum 2with theclock mechanism through intermediate connections by means of which the indicating devices of the clock mechanism are actuated from the said drum on thebas'is of the extent of travel of the periphery ofthe drum. Inasmuch as the warp is wound upon the warpbeam as a result of the frictional engagement between the drum-periphery and the surface of the beam-barrelor of the "cylindrical mass of warp already wound upon, the beam-barrel, it follows that the length of the amount'of Warp wound upon the beam corresponds with the extent of the turning movement of- -the' drum-periphery. In the illustrative embodiment of this-portion of my invention the special intermediate connectionsbetween the drum* and the olock mechanism comprise a spur-gear 31, which is connected with the frictional driving drum 2 so as to turn simultaneously-with the latter,and a spur-gearj32 which for the purposes 'of this description may betermed a unit-wheel, and which is in driving :connection with the gear .31. The

two gears 31 and 32 may be in direct mesh witheachother, as "shown, alth'o this is not indispensable. The gear 32 is intended to; have ahiven extent of turning novement for an extent of turning movement of the drumperiphery corresponding withithe predetermined .unitof" length; Y v

The unit of length may be, in practice, a yard, a given; fraction of a yard, or a foot. Preferably, provision is-made for giving one; revolution to gearl32 for-every unit, although such gear might be caused to make one revolution for every two or more units of length or a predetermined number of revolutions for every unit of length.

In the present instance, the gear 32 is intended to have one complete revolution imparted thereto for each yard of movement of the periphery of the drum 2. To this end, the gear 31 is formed with a number of teeth corresponding with the number of inches in the periphery of the drum, and the gear 32 is formed with thirty-six teeth, so that a turning movement of the periphery of the drum to an extent equalling thirty-six inches, and representing one yard of warp wound on the beam, will produce one revolution of the gear 32. The gear 32 is combined operatively with the primary shaft 41 of the clock mechanism through devices operating to impart to the said primary shaft a predetermined increment of revolution for revolution of gear 32 to the extent corresponding with the predetermined unit of length of movement of the periphery of the drum. In this instance the gear 32 is combined with the said primary shaft of the clock mechanism by means of an intermediate shaft 37, equal bevel gears 35 and 36 by means of which shaft 37 is actuated from the gear 32, and equal bevel gears 39 and 40 through which the shaft serves to actuate the primary shaft 41, so that one revolution is imparted to shaft 41 for every revolution of gear 32, the latter representing movement of the periphery of the drum to the extent of thirty-six inches.

The clock mechanism may be varied in practice to suit requirements. Usually it comprises, or includes, a clock having a so-cal'led scroll 56 and a faller 57 co-operating with said scroll. In the drawings, the scroll 56 is 5 actuated from the primary shaft 41 by means of a worm 48 upon the said shaft engaging a worm-gear 49, the latter mounted upon an intermediate shaft 50 carrying a worm 52 which engages a worm-gear 53 that isfast with scroll 56. Through such actuating connections the scroll is rotated in the required ratio as the primary shaft 41 is actuated through the rotation of driving drum 2. The faller 57 is the usual faller arm, hung upon a stud 58 extending outward from the machine-frame, and adapted to slide outward upon the said stud as well as to swing around the same, the said faller-arm having a projection 59 at its under side which the attendant locates in the groove between convolutions of the scroll 56, at a proper distance from the outer end of the scroll, and which projection is capable of entering the usual notch 60 at the outer end of the scroll, to permit the faller arm to drop and bring about the stopping of the machine. I

The drawings show, in addition to the clock with scroll designed to stop the winding when the predetermined amountof warp has been wound upon the beam 8, a so-called indicating clock 47 designed to enable the attendant to keep track of the total length of warp which has passed through the machine and been wound upon beam 8. This clock is actuated from primary shaft ilthrough con nections comprising in this instance equal gears 42, 13, a worm-shaft H, a worm 45, and a worm-gear 46 on the shaft through which the indicating devices of clock 47 are operated.

If preferred in practice, mechanical devices on the order of those in general use may be employed to bring about stoppages of the machine when the faller drops. The employment of mechanical devices for the said purpose has the drawback'that more or less of an interval of time elapses between the dropping of the faller and the unshipping and ln-aking action, and,consequently an appreciable excess length of warp may be wound. By way of remedying this fauit of the warpers at present in use, I preferably employ electrically operated shipping devices, controlled by the faller. In the drawings, the faller carries an electrical contact 71, constituting one terminal of an open electrical circuit, such contact being arranged to touch an opposing electrical contact 69, when the faller drops, so as thereby to close the electric circuit and bring about stoppage of the machine. Within the electric circuit is embraced an electro-magnet 80 having an armature 81 adapted to lock or to free a detent-member 64 adapted to engage a shoulder on a latch 62 extending upward from the treadle 61 through a guide 68 adjoining said magnet. When the treadle is pushed down to start the machine, the detent engages with shoulder 65 to prevent the latch 62 and treadle from rising. Thereby the machine is kept at work. When the faller drops so as toe-lose the gap between terminals 71 and 69, the magnet acts instantly to permit detent 64k to release shoulder 65 of the latch 62, so that the disconnection of the driving power and application of the brake are caused to occur without delay.

That is claimed as the invention is 1. In a warper, the combination with a drum which actuates the warp-beam by surits face friction against the periphery of the cylindrical yarn-mass that is wound upon the warp-beam, and clock mechanism which stops the winding after a predetermined amount has been wound on the beam, of

means for actuating said clock mechanism directly from said drum. 1

2. In a warper, the combination with a drum which actuates the warp-beam by surface friction against the periphery of the cylindrical yarn-mass that is wound upon the warp beam, and clock mechanism to stop the winding after a predetermined amount has been wound on the beam, of a gear-wheel corresponding in the number of its teeth with the number of inches in the circumference of the drum and revolving at thesame angular speed as the drum, and connections by which said clock mechanism is driven from said gear-wheel in proper ratio to the length of warp wound upon the warp-beam.

3. In a warper, the combination with a drum which actuates the warp-beam by surface-friction against the periphery of the cylindrical yarn-mass that is wound upon the warp-beam, and as registering device, of a gear-wheel corresponding in the number of its teeth with the number of inches in the circumference of the drum and revolving at the same angular speed as the drum,and driving connections intermediate said gear-wheel and said registering device, for actuating the latter in proper ratio to the length of warp wound upon the warp-beam.

4:. In a warper, the combination with a drum which actuates the warp-beam by surface-friction against the periphery of the cylindrical yarn-mass that is wound upon the warp-beam, and clock-mechanism which stops the winding after a predetermined amount has been wound on the beam, said clock-mechanism including a clock worm gear and an actuating worm which engages said worm-gear, of a gear-wheel correspond ing in the number of its teeth with the number of inches in the circumference of the drum and revolving at the same angular speed as the drum, and driving connections from said gear-wheel to communicate one revolution to the said actuating worm for each unit-length of warp that is wound upon eating one revolution to the said worm for face-friction against the periphery of the cyeach unit of length that is wound upon the warp -.beam.

6. In a warper, the combination with a drum which actuates the warp-beam by surlindrical yarn-mass that is wound upon the warp-beam, of a gear-wheel corresponding in the number of teeth with the number of inches in the circumference of the drum and revolving at the same angular speed as the drum, a unit-wheel driven through said teeth and through teeth of its own corresponding in number with the number of inches in the predetermined unit of length,and a in the number of its teeth with the number of inches in circumference of the drum and revolving at the same angular speed as the drum, a unit-wheel driven through the said teeth and through teeth of its own corresponding in number with the-number of inches in the predetermined unit of length, and a clock mechanism actuated from said unit-wheel to stop the winding after a predetermined number of revolutions of the unit wheel. V

8. In a 'warper, the combination with a drum which actuates the warp-beam by surface-friction against the periphery of the cy-- lindrical yarn-mass that is wound upon the warp-beam, and a registering device'which includes a worm-gear and an actuating worm which engages said worm-gear, of a gearwheel corresponding in the; number of its teeth with the number of inches in the circumference of the drum and revolving at the same angular speed as the drum, a unitwheel driven through the said teeth :and

through teeth of its own corresponding in number with the number of inches in the predetermined unit of-length, and driving connections intermediate said unit-wheel and said actuating worm communicating one revolution to such worm to each revolution of the unit-wheel. v

9. In a warper, the combination with a drum which actuates the warp-beam by surface-friction against the periphery of the cylindrical yarn-mass that is wound upon the warp-beam, of a gear-wheel corresponding.

in the number of its teeth with the number of inches in the circumference of the drum and revolving at the same angular speed as the drum, a unit-wheel driven through said teeth and through'teeth of its own corresponding in number with the' number of inches in the predetermined'unit of length, clock-mechanism which stops the winding after a predetermined amount has been wound on the beam, said clock-mechanism including a worm-gear. and an actuating worm which engages said worm-gear, and

motion transmitting connections communi eating to said actuating worm one revolution to each revolution of the unit-wheel.

10. In a warper, the combination with a drum which actuates the warp-beam by surface-friction against the periphery of the cylindrical yarn-mass that is wound upon the warp-beam, and a clock-mechanism which includes an actuating worm, of a gear-wheel corresponding in the number of its teeth with the number of inches in the circumference of the drum and revolving at the same angular speed as the drum, a unit-wheel driven through the said teeth and through teeth of its own corresponding in number with the number of inches in the predetermined unit of length, and motion transmitting eon ncctions comprising an intermediate shaft, means for driving said shaft from said unit 10 Wheel with an equal number of turns, and means for driving the actuating worm of the clock-mechanism from the said shaft with an equal number of turns.

11. In a Warper, in combination, a drum to which drives the receiving Warp-beam by surface-contact against the periphery of the cylindrical yarn-mass that is Wound upon the warp-beam, clock-mechanism, and interme diate connections by means of which the inso dicating devices of the cloekaneehanism are actuated from the said drum on the basis of the extent of travel of the periphery of the drum.

12. In a warper, in combination, a drum which drives the receiving warp-beam by surface-contact against the periphery of the cylindrical yarn -mass that is wound upon the Warp-beam, a clock-mechanism, a gear hav ing a given extent of turning movement for an extent of turning movement of the drumperiphery corresponding with the predetermined unit oi? length, and means for communicating a predetermined extent of revolution to the primary shaft of said indicating devices for revolution 01 such gear to the said given extent.

13. In a warper, in combination, a drum which drives the receiving Warp-beam by surface-contact against the periphery of the cylindrical yarn-mass that is wound upon the Warp-beam, a clock-mechanisni, a gear actuated from the drum and caused to make one revolution for an extent of turning movement of the drum-periphery corresponding with a predetermined unit of length, and means for communicating to the primary shaft of the clock-mechanism a predeter mined movement of revolution for every revolution of the said gear.

14. In a warper, in combination, a drum i which drives the receiving Warp-beam by surface-contact against the periphery of the cylindrical. yarn-mass that is Wound upon the warp-beam, a clock mechanism, a gear actuated from the drum and caused to make one revolution for an extent of turning movement oi the drum-periphery corre-s i-onding with a predetermined unit of length, and means for communicating to the primary C9 shaft of the clock-mechanism one revolution for every revolution oi the said gear.

JOHN V. SIDEBOTTOM. 

